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Simplifying 6y2 + -13y + -3 = 0 Reorder the terms: -3 + -13y + 6y2 = 0 Solving -3 + -13y + 6y2 = 0 Solving for variable 'y'. Begin completing the square. Divide all terms by 6 the coefficient of the squared term: Divide each side by '6'. -0.5 + -2.166666667y + y2 = 0 Move the constant term to the right: Add '0.5' to each side of the equation. -0.5 + -2.166666667y + 0.5 + y2 = 0 + 0.5 Reorder the terms: -0.5 + 0.5 + -2.166666667y + y2 = 0 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + -2.166666667y + y2 = 0 + 0.5 -2.166666667y + y2 = 0 + 0.5 Combine like terms: 0 + 0.5 = 0.5 -2.166666667y + y2 = 0.5 The y term is -2.166666667y. Take half its coefficient (-1.083333334). Square it (1.173611113) and add it to both sides. Add '1.173611113' to each side of the equation. -2.166666667y + 1.173611113 + y2 = 0.5 + 1.173611113 Reorder the terms: 1.173611113 + -2.166666667y + y2 = 0.5 + 1.173611113 Combine like terms: 0.5 + 1.173611113 = 1.673611113 1.173611113 + -2.166666667y + y2 = 1.673611113 Factor a perfect square on the left side: (y + -1.083333334)(y + -1.083333334) = 1.673611113 Calculate the square root of the right side: 1.293681225 Break this problem into two subproblems by setting (y + -1.083333334) equal to 1.293681225 and -1.293681225.Subproblem 1
y + -1.083333334 = 1.293681225 Simplifying y + -1.083333334 = 1.293681225 Reorder the terms: -1.083333334 + y = 1.293681225 Solving -1.083333334 + y = 1.293681225 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.083333334' to each side of the equation. -1.083333334 + 1.083333334 + y = 1.293681225 + 1.083333334 Combine like terms: -1.083333334 + 1.083333334 = 0.000000000 0.000000000 + y = 1.293681225 + 1.083333334 y = 1.293681225 + 1.083333334 Combine like terms: 1.293681225 + 1.083333334 = 2.377014559 y = 2.377014559 Simplifying y = 2.377014559Subproblem 2
y + -1.083333334 = -1.293681225 Simplifying y + -1.083333334 = -1.293681225 Reorder the terms: -1.083333334 + y = -1.293681225 Solving -1.083333334 + y = -1.293681225 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.083333334' to each side of the equation. -1.083333334 + 1.083333334 + y = -1.293681225 + 1.083333334 Combine like terms: -1.083333334 + 1.083333334 = 0.000000000 0.000000000 + y = -1.293681225 + 1.083333334 y = -1.293681225 + 1.083333334 Combine like terms: -1.293681225 + 1.083333334 = -0.210347891 y = -0.210347891 Simplifying y = -0.210347891Solution
The solution to the problem is based on the solutions from the subproblems. y = {2.377014559, -0.210347891}
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